Suppose f(x)= x^2 and g(x)= (1/5x)^2. Which statement best compares the graph of g(x) with the graph of f(x)?
Question
Answer:
Answer:g(x) is the image of f(x) after stretched horizontallyby scale factor = 5Step-by-step explanation:∵ f(x) = x² ⇒ quadratic function∵ g(x) = (1/5 x)² ⇒ The image of f(x) after one transformation* Stretches or compresses horizontally: It means stretches away from the y-axis or compresses toward the y-axis
* If f(x) = (ax)² :∵ |a| > 1 is a compression by factor of 1/a
∵ 0 < |a| < 1 is a stretch by factor of 1/a∵ x-coordinate of f(x) multiplied by 1/5∵ 0 < 1/5 < 1∴ The transformation is ⇒ stretched horizontally∴ g(x) is the image of f(x) after stretched horizontally by scale factor = 1 ÷ 1/5 = 5
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